The extreme function of a linear functional in the weighted Sobolev space | Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2011. № 2(14).

The extreme function of a linear functional in the weighted Sobolev space

The element of the uniformly convex space on which a functionalreaches its norm is constructed. The result finds an application in the theory of cubatureformulas where the error of numerical integration is represented by a linear functional and may beestimated via its norm. The norm of the error functional is expressed through such element whichis called an extreme function.

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Keywords

norm of a functional, norm of an extreme function, integral representation of a functional, linear compactly supported functional, weighted Sobolev space, extreme function, норма экстремальной функции, норма функционала, интегральное представление функционала, линейный финитный функционал, весовое пространство Соболева, экстремальная функция

Authors

NameOrganizationE-mail
Korytov Igor VitalievichIrkutsk State Universitykor2003@inbox.ru
Всего: 1

References

Соболев С.Л. Некоторые применения функционального анализа в математической физике. М.: Наука, 1988.
Владимиров В.С. Уравнения математической физики. М.: Наука, 1981.
Соболев С.Л. Введение в теорию кубатурных формул. М.: Наука, 1974.
Никольский С.М. Приближение функций многих переменных и теоремы вложения. М.: Наука, 1977.
 The extreme function of a linear functional in the weighted Sobolev space | Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2011. № 2(14).

The extreme function of a linear functional in the weighted Sobolev space | Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2011. № 2(14).

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